Telescope Lenses Are there any other lenses available for the Vivitar Telescope? I would like higher values if possible. Thank You. Teachmee22

Sorry-- no we cannot help you. NEVER remove the front lenses from a telescope. Only the outside surfaces would ever need to be cleaned.

You will need to experiment-- there are really only a limited amount of possible ways to assemble two lenses together. Try each different way -- and use cotton gloves so you do not get fingerprints on the lenses.



www.telescopeman.org
www.telescopeman.us
www.telescopeman.info

All Pentax bayonet mount lenses.(Third party) lenses:Vivitar,Sears,Tamron,Later Chinon,...In Reality almost all third party lens maker have produced bayonet mount lenses,and most of them are marked with a PK.Best third party lenses are Vivitar.Hope this helps.

Use the weakest lens the lens cap is off I hope lol I have a Meade scope and it has thumbscrews for the lenses that must be tightened evenly.It's tricky to see through a telescope especially if you have a strong lens in there instead of a weaker one.

Just put the eyepiece with the largest number written on it into the focuser. Take the scope outside during the day time and practice focusing on a distant object.

You can buy (or order) lenses for the Vivitar at any good camera store, brick&mortar or online. Be sure to specify "Pentax K-mount."

I threw it out.

You don't need to get Vivitar brand eyepieces to get replacement ones for your telescope. I'm not sure of the specifications for this particular telescope but in general they come in two barrel sizes for the eyepieces. The diameter of your eyepiece is probably 0.965" but could come in the more standard 1.25". You can measure the diameter and determine this quickly.

Once you know the diameter to shop for you can look for the focal length of the eyepiece you wish to purchase. They are rated such as 4mm, 10mm, 25mm, etc. The smaller numbers give you higher magnification. You can calculate the magnification by dividing the telescopes focal length by the eyepiece focal length. For example, let's say your telescope is has a focal length of 360mm and you have an eyepiece rated 10mm. Divide 360 by 10 and that gives you a magnification power of 36.

You can find eyepieces at many telescope dealers on the internet. Your selection will be far less if you use 0.965" eyepieces. You can purchase 0.965" to 1.25" adapters so that you can use the larger eyepieces with your telescope. However, on some telescopes the adapters will cause the new eyepiece to not come into focus.

You'll also find that eyepiece prices go all over the place. A good general purpose eyepiece is a type called the Plossl. The better eyepieces have more coatings too that allow more light to get through to your eye. You'll find these listed with terms like "fully multi-coated".

I hope this helps.

Good luck and clear skies!

-jodair

If it is a focused image but hazy or foggy, you have to clean the optics in your telescope. If you have a focus problem but a clean image, then you are having travel limitations of your focus equipment usually rack and pinion. Wearing eyeglasses can also effect that mechanical problem and so does other added components like "Barlow Lenses" that are used to double or triple eyepiece magnifications. You might also have the lenses in the optical system not in the right order or direction when it was taken apart.

I can scan it for you!

It is generally bad to go higher than 50 power per inch aperture, due to the wave nature of light. It will magnify, but the image will get steadily worse, and be 'fuzzy' and unable to sharpen. If the telescope is 60mm, then the maximum practical power is 118x
If you insist on going higher, consider the use of a barlow. That will make the eyepieces that you have go 2x greater magnification.